Flow-preventer.



Na.692,62q. v Patented Fab. 4., m02,

N.; CARTER.

FLOW PREVENTER.

(Application led Aug. 1, 19.01;.)

(N-o Model.)

ATENT Finca.

NANCY CARTER, OF YAZOC CITY, MISSISSIPPI.

FLOW-PREVENTR.

SPECIFICATIGN forming'part of Letters Patent No. 692, 620, datedFebruary 4, 1902.

Application led August l, 1901. Serial No. 70,528. (No model.) l

To all whom it may concern.:

Be it known that I, NANCY CARTER,a citizen of the United States,residing at Yazoo City,in the county of Yazoo, State of Mississippi,have invented certain new and useful Improvements in Flow-Preventers;and I do hereby declare the following to be a full, clear, and exactdescription of the invention such as will enable others skilled in theart to which it appertains to make and use the saine.

This invention relates to devices for preventing or regulating-the flowof oil from oilwells; and it has for its object to provide a cap for thewell-casing into which the oil will liow and the iiow of oil from whichmay be regulated or entirely cut off.l

Other objects and advantages of the invention have reference to thespecific structure of the device and will be understood from thefollowing description.

In the drawings forming a portion of this specification, and in whichlike numerals of reference indicate similar parts in both views,

Figure 1 is an elevation showing the device applied to an oil-well. Fig.2 is a vertical section through the device and the upper portion of thewell-casing to which itis attached.

In the drawings there is shown a flow-preventer embodying the presentinvention and including a central cylindrical body 5, having aninwardly-directed flange 6 at its lower end and also anoutwardly-directed flange 7, the flange 6 being adapted to tit -snuglyaround the protruding upper end 8 of a well-casing, so that the oil thatrises in the casing may pass into the body, said body having a lid orcover 9, which closes the upper end thereof.

l A cylindrical casing 10 is provided for the body 5 and is secured atits lower end upon the iian'ge 7, the casing being separated from thebody by an interspace and extending somewhat above the upper end thereofand having also a closure 12 at its upper end. In the side of the casing10 is a doorway 13, having a hinged door 14, provided with a suitablelatch 15, and opening through the side of the body 5 and communicatingwith the interspace between the body and casing 'at the doorwayis aperforation 16, in which is fitted a spout 17, which latter is providedwith a downturned discharge end 18, through which the oil may flow fromthe body 5 to the barrels to be iilled.

To cut od the flow of oil through the spout, a damper 19 is provided,and consists of a disk 20, which is fixed to a shaft 21, journaled inthe sides of the body 5 and passing diametricallythereof, one end of theshaft passing outwardly through the casing and having a handle 22 tofacilitate rocking of the shaft. The shaft is in the plane of the innerend of the spout and slightly above the latter, so that when the shaftis rocked the disk will be moved to cover the inner Vend of the spout orto partially close itv to reduce the iiow of oil.

To provide against-an excessive pressure that might lift the device fromthe casing or raise the covers thereof, the inner cover, whichis thecover of the body 5, is provided with the basket 24,. supported uponrods 26, attached to the cover, and in which basket is a weight 27.

As a means for holding the body positively against displacement from thecasing a base is provided, and consists ofa plate28 of disk shape andwhichhas a central opening to receive the casing, and at theedge of theopening is an upwardly-directed flange 29, having screws 30 engagedtherewith and with the caslng. which are perforated for engagement oflagscrews 32,which are screwed intca supportingframework of woodenblocks, (shown at 33.)

On the outer face of the casing are the ears 34, in which are engagedthe Vertical rods 45, forming handles by means of which the device islifted from place to place.

The plate 28 has the radiating ears 31,

'To entirely out off flow of oil from the ca'sa hand-wheel at its outerend whereby the` shaft may be oscillated to move the valvestem inopposite directions to open or close the valve. l

1. A device of the class described comprising an inner cylindrical bodyhaving inwardly and outwardly directed flanges at its lower end, theinwardly-directed flange being adapted to tit about a well-casing, acylindrical casinginclosing the body and secured to the exterior flangethereof, a door-opening in the casing having a closure, a spout passedthrough the body and registering with the door-opening of the casing,and a closure for the spout.

2. VA device of the class described comprising a cylindrical body havingan inciosing casing spaced therefrom, a door-opening in the casinghaving` a closure, a spout passed into the body and communicatingtherewith, the outer end of the spout being disposed adjacent to thedoor-opening, a pivoted disk within the body and disposed for movementto cover the inner end of the spoilt, means for rocking the disk intoand out of closing position, a cover for the body havingawoightreceptacle, and a cover for the casing, the body and casing beingconnected at their lower ends and the body having an inwardly directedflange at its lower end. constructed and arranged to snugly fit about aWe1i-cas ing.

In testimony whereof I afiix my signature in presence of two witnesses.

NANCY CARTER. Witnesses:

BROCK Glens, A. J. OAKEs.

